The water samples from different areas of Bashundhara Residential Area in Dhaka were analyzed. The tap water samples showed electrical conductivity ranging from 214-727 μS/cm, total dissolved solids from 107-361 ppm, pH ranging from 6.5-6.9, and turbidity up to 3.06 NTU in one sample. The filtered water samples had better quality overall with lower EC, TDS, and NaCl levels compared to tap water. While most parameters met drinking water standards, some tap water samples exceeded limits for certain measurements.

1. 1
Water Quality Analysis of different areas in Dhaka
city & Mineral Water samples
Submitted To:
Dr. Kamrun Nahar
Associate Professor
Department of Environmental science, School of Health & Life Science
ENV107L: Introduction to Environmental Science Lab
Section: 04
Submitted by: Group-2
Name ID
Khushbu Rifat Himi 1610952015
Hasan Mahmud 1610051030
Md. Tanzirul Amin 1611676030
Syed Md. Abu Saleh 1611850030
S.M. Ashif Rahman Akash 1812840011
Date of Submission: 25th
March 2019, Monday

2. 2
Executive Summary
In this report we have analyzed different water samples of major areas of Dhaka city. Then
we have analyzed the Mineral water Samples and some soft drinks of different brands. From the
areas we have gone through almost 300 samples and tried to find out the best possible drinking
water from a particular area. After analyzing the samples within area, we made a throughout
analysis on the areas. Also we have found out that water qualities vary from area to area. For
drinking water we found out that filtered water is the best option. Moreover, we analyzed the
mineral water samples and found out some best possible options and analyzed the soft drinks too.

3. 3
Table of Contents Page#
1. Introduction 4
2. Methodology 5
3. Lab Experiment 6
4. Procedure of lab analysis and list of parameters 7-8
5. Photos of water and soft drinks samples 9-11
6. Bashundhara R/A water quality measurements 12-17
7. Puran Dhaka water quality measurements 18-25
8. Uttara water quality measurements 26-33
9. Mirpur water quality measurements 34-41
10.Lakes of Dhaka city water quality measurements 42-45
11.NSU and mineral water quality measurements 46-49
12.Soft drinks quality measurements 50-53
13.Conclusion and remarks 54
14. Appendix 55

4. 4
Introduction
Water is one of the most important substances on earth. We already know another name of
water is life. We human beings, all plants and animals must need water to survive. If there was no
water there would be no life on earth. Apart from drinking it to survive, people have many other
uses for water. It is used in both household and industrial purposes. Water is also essential for the
healthy growth of farm crops and farm stock and is used in the manufacture of many products. But
in our country Bangladesh, water pollution is one of the most significant dangers to general
wellbeing. Especially water turns into curse for the city dwellers in Dhaka. Water pollution is
common throughout our country but in Dhaka, it has presented itself as a very serious problem. A
city which has nearly 20 million inhabitants, Dhaka faces challenges for inadequate sanitation,
polluted rivers, and chemical outpouring from the surrounding industries, faulty sewage
management etc. Most of these are resulting from the unplanned nature of urbanization. Also the
people are not aware of that situation for that reason different health hazards like diarrhea, typhoid,
dysentery, colon, kidney problems and many other health concerns are a direct result of city-wide
water pollution. However, the quality of the mineral water samples of all brands is not standard
and drinkable at all. The scenario for soft drinks is even worse.
To find out the current situation of water quality and to know more about water variation
in different areas, we collected different samples of water from the different areas of Dhaka city
under the ENV107 Lab. Here in this report we will present the water quality of Dhaka city.

5. 5
Methodology
Here in this report, we basically use primary sources. By using the source, we try to
represent the real scenario of water quality of Dhaka city.
Primary Source:
Our water sources include the water samples from different residential areas of Dhaka city,
different brands of drinking water and some soft drinks of Bangladesh.
The places (Sources) we examined are following-
 Bashundhara Residential Area
 Puran Dhaka
 Uttara
 Mirpur Area
 Different Lakes( Dhanmondi lake, Gulshan lake, Hatirjheel, Uttara lake, Mirpur
DOHS lake)
 Mineral waters and soft drinks
In each of our lab classes, we tested these water samples and collected some parameters
from our lab class to measure and know more about the water quality.

6. 6
Lab experiment
We did altogether seven lab classes. In the first class, our course instructor told us about
the importance of water and water pollution. She instructed us to collect sample water like surface
and ground water from different areas and different lakes of Dhaka city. Also she told us to collect
different brands of drinking water and some of the soft drinks. In each of our lab classes, we, along
with our lab instructor and lab assistant, tested the various water samples.
However, some of the water samples that we collected seemed clear; it does not mean that
those are safe or drinkable. It's important to evaluate the protection of water by taking some of the
qualities into consideration. Firstly we can think about Microbiological like if there are any
bacteria, viruses, protozoa, and worms into it or not. Then if there any Chemical elements present
into it like minerals, metals etc. Lastly the Physical components like temperature, color, smell,
taste and turbidity etc. are also important.
We did not do any microbiological research but we examined through chemical and
physical components. For chemical part we did pH, DO( Dissolved Oxygen) and NaCl and for
physical part we did TDS( Total Dissolved Solids), EC( Electrical Conductance) and Turbidity.
Water samples collection
We collected water samples from different areas of Dhaka City. At first, we collected
samples from Bashundhara residential area. The blocks were divided among four groups and each
group explored different blocks. Collectively we collected water samples from different blocks of
this area. We collected both surface and tap and filter water from this area. Then, we collected
water samples from Puran Dhaka and collected filter, tap and pond water. Then we collected
different mineral water samples like: Fresh, Mum, Acme, Pran, Kinley, Jibon etc and some soft
drinks like: Sprite, CocaCola, Clemon, 7up, Fanta etc. After that we collected both filter and tap
water samples from Mirpur area, and then we collected our water samples from different sides of
the lakes of Dhaka city.

7. 7
Procedure of the lab Analysis
As we have collected many water samples, the objective of the test is to assess the quality
of different places of Dhaka city. We followed a table to note down all the information that we got
from the lab class. The table looked like this:
Sample ID
(Location)
EC
(mm/cm)
TDS
(ppm)
NaCl
(%)
pH DO
(mg/l)
Turbidity
(NTU)
Sample 1
Sample 2
The list of parameters
1. EC: An EC meter measures the potential for an electrical current to be transported through
water. Salts and other chemicals that dissolved in water can be break down into positively
and negatively charged ions. Electrons are able to flow through the water from one set of
electrodes to another. Better quality water will be in the range of 50-500 mm/cm.
2. Total Dissolved Solids: TDS are inorganic compounds that are found in water such as
salts, heavy materials and some traces of organic compounds that are dissolved in water.
We will consider the water contaminated if it exceeds 500 ppm. We can consider TDS of
100-400 ppm as drinkable.
3. % of NaCl (Sodium Chloride): Sodium is an essential mineral in our diet. It is generally
found in the form of NaCl. Salt has no smell. If it's 0 then it is better. The ideal range is (0-
0.7) %.
4. pH: pH is a determined value based on a defined scale. pH of water is a figure between 0
and 14 .The lower the number, the more acidic the water is. The higher the number, the
more basic it is. : pH 7, neutral, indicates best quality water. If it's less than 5: Acetic, if
it's more than 8: Alkaline.

8. 8
5. Dissolved Oxygen: Dissolved Oxygen is the amount of O2 dissolved in the water. Water
temperature and the volume of moving water can affect dissolved oxygen levels. Do of this
range (7-11) mg/L makes the water Best drinking water. Good organisms are not supposed
to be alive if the DO is lower than 7 mg/L.
6. Turbidity: Turbidity is the measure of relative clarity of liquid. It is basically an optical
characteristic of water and is an expression of the amount of light that is scattered by
material in the water when a light is shined through the water sample. Turbidity of 0 NTU
is considered to be the clearest of water.
Figure: Lab Experiment Apparatus

9. 9
Photos of water and soft drinks samples
Figure: Some mineral water Samples
Figure: Some tap water samples from Bashundhara E block Pond water

10. 10
Figure: Gulshan Lake Hatirjheel Lake
Figure: Some tap and filter water samples from Puran Dhaka and Uttara area

11. 11
Figure: Some water samples from Mirpur Area
Figure: Samples of soft drinks

12. 12
Bashundhara R/A water quality measurements
a. Bashundhara R/A Tap water:
b. Bashundhara R/A Filter water:
Bashundhara
R/A Tap water Parameters
Sample ID
(Location)
EC(in
μS/cm)
TDS(in
ppm)
% of
NaCl pH
DO(in
mg/L)
Turbidity(in
NTU)
Block-A Rd-2 214 107 0.4 6.6 8.5 0
Block-B Rd-6 271 135 0.5 6.6 5.6 0
Block-C Rd-3 245 122 0.5 6.9 7.8 0
Block-D Rd-10 326 163 0.6 6.9 6.8 0
Block-D Rd-4 311 156 0.6 6.6 8 0
Block-D Rd-6 325 162 0.6 6.5 8 0
Block-D Rd-8 421 211 0.8 6.6 7.5 0
Block-D Rd-9 426 213 0.8 6.7 8.2 0
Block-E Rd-1 345 172 0.7 6.9 7.7 0
Block-E Rd-
2(Pond) 403 202 0.8 6.9 7.1 63
Block-E Rd-5 232 115 0.5 6.9 7.7 0
Block-E Rd-6 301 150 0.6 6.8 7.9 0
Block-F Rd-1 289 145 0.6 6.8 7.4 1.12
Block-F Rd-16 310 155 0.6 6.5 7.3 0
Block-F Rd-2 233 116 0.5 6.5 7.5 0
Block-F Rd-21 328 164 0.6 6.5 7.89 0
Block-G Rd-1 242 121 0.5 6.6 6.8 0
Block-G Rd-2 279 140 0.5 6.7 7.7 0
Block-H Rd-3 239 119 0.5 6.7 7.6 0
Block-H Rd-4 266 133 0.5 6.7 7.4 0
Block-I Rd-2 727 361 1.4 6.4 7.8 3.06

13. 13
Bashundhara
R/A Filter
water Parameters
Sample ID
(Location)
EC(in
μS/cm)
TDS(in
ppm)
% of
NaCl pH
DO(in
mg/L)
Turbidity(in
NTU)
Block-A Rd-2 238 118 0.5 6.7 7.38 0
Block-B Rd-5 52 26 0.1 6.9 6.8 0
Block-B Rd-6 292 145 0.6 6.7 4.5 0
Block-C Rd-3 393 197 0.8 6.7 7.6 0
Block-D Rd-6 163.3 81.7 0.3 6.8 8.21 0
Block-D Rd-8 37.5 18.7 0.1 7.1 7.4 0
Block-E Rd-1 208 104 0.4 7 8.1 0
Block-F Rd-1 54.4 27 0.1 7 7 0
Block-F Rd-16 321 160 0.6 6.4 7.6 0
Block-F Rd-21 216 108 0.4 6.8 8 0
Block-G Rd-1 174 87 0.3 6.5 7.5 0
Block-G Rd-3 128 64 0.3 7.1 7.8 0
Block-G Rd-4 115 57 0.2 6.9 7.9 0
Block-I Rd-2 709 354 1.4 6.8 7.3 0
i. Parameter 1: Electrical conductivity (EC)
214
271
245
326
311
325
421
426
345
403
232
301
289
310
233
328
242
279
239
266
727
0
100
200
300
400
500
600
700
800
BASHUNDHARA TAP WATER
EC(in μS/cm)

14. 14
ii. Parameter 2: Total Dissolved Solid (TDS)
238
52
292
393
163.3
37.5
208
54.4
321
216
174
128
115
709
0
200
400
600
800
Block-A
Rd-2
Block-B
Rd-5
Block-B
Rd-6
Block-C
Rd-3
Block-D
Rd-6
Block-D
Rd-8
Block-E
Rd-1
Block-F
Rd-1
Block-F
Rd-16
Block-F
Rd-21
Block-G
Rd-1
Block-G
Rd-3
Block-G
Rd-4
Block-I
Rd-2
BASHUNDHARA FILTER WATER
EC(in μS/cm)
107
135
122
163
156
162
211
213
172
202
115
150
145
155
116
164
121
140
119
133
361
0
50
100
150
200
250
300
350
400
BASHUNDHARA TAP WATER
TDS(in ppm)
118
26
145
197
81.7
18.7
104
27
160
108
87
64
57
354
0
100
200
300
400
BASHUNDHARA FILTER WATER
TDS(in ppm)

15. 15
iii. Parameter 3: % of Sodium Chloride (NaCl)
iv. Parameter 4: pH Level
0.4
0.5
0.5
0.6
0.6
0.6
0.8
0.8
0.7
0.8
0.5
0.6
0.6
0.6
0.5
0.6
0.5
0.5
0.5
0.5
1.4
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
BASHUNDHARA TAP WATER
% of NaCl0.5
0.1
0.6
0.8
0.3
0.1
0.4
0.1
0.6
0.4
0.3
0.3
0.2
1.4
0
0.5
1
1.5
Block-A
Rd-2
Block-B
Rd-5
Block-B
Rd-6
Block-C
Rd-3
Block-D
Rd-6
Block-D
Rd-8
Block-E
Rd-1
Block-F
Rd-1
Block-F
Rd-16
Block-F
Rd-21
Block-G
Rd-1
Block-G
Rd-3
Block-G
Rd-4
Block-I
Rd-2
BASHUNDHARA FILTER WATER
% of NaCl
6.6
6.6
6.9
6.9
6.6
6.5
6.6
6.7
6.9
6.9
6.9
6.8
6.8
6.5
6.5
6.5
6.6
6.7
6.7
6.7
6.4
BASHUNDHARA TAP WATER
pH

16. 16
v. Parameter 5: Dissolved Oxygen (DO)
6.7
6.9
6.7
6.7
6.8
7.1
7
7
6.4
6.8
6.5
7.1
6.9
6.8
BASHUNDHARA FILTER WATER
pH
8.5
5.6
7.8
6.8
8
8
7.5
8.2
7.7
7.1
7.7
7.9
7.4
7.3
7.5
7.89
6.8
7.7
7.6
7.4
7.8
0
2
4
6
8
10
BASHUNDHARA TAP WATER
DO(in mg/L)
7.38
6.8
4.5
7.6
8.21
7.4
8.1
7
7.6
8
7.5
7.8
7.9
7.3
0
2
4
6
8
10
Block-A
Rd-2
Block-B
Rd-5
Block-B
Rd-6
Block-C
Rd-3
Block-D
Rd-6
Block-D
Rd-8
Block-E
Rd-1
Block-F
Rd-1
Block-F
Rd-16
Block-F
Rd-21
Block-G
Rd-1
Block-G
Rd-3
Block-G
Rd-4
Block-I
Rd-2
BASHUNDHARA FILTER WATER
DO(in mg/L)

17. 17
vi. Parameter 6: Turbidity
After measuring, the quality of the Bashundhara R/A waters we can see that, the EC, TDS, % of
NaCl, pH and DO of almost all the water samples were in standard range. However, the samples
from the Block-I had very high levels of EC and % of NaCl that were above the normal standard,
and TDS was also little high. Though some samples had a pH little less than pH 7 but we can still
say that the water in this area is very much close to the neutral pH range. DO of Block-B waters
are below the standard range, it may be a concerning issue for the health of the residents in this
block. The turbidity of all the samples were within the normal standard range, and 0 NTU in almost
all the tap and filter water samples. We can conclude that, both the tap and filter of Bashundhara
R/A, are good for use in household and other purposes. Yet, we would suggest that the residents
must use filter water for drinking, cooking and consumption so that the do not get ill. However, it
is recommended that people should not use the water from the Block-E pond as it has very high
levels of turbidity, 63 NTU.
0
0
0
0
0
0
0
0
0
63
0
0
1.12
0
0
0
0
0
0
0
3.06
0
10
20
30
40
50
60
70
BASHUNDHARA TAP WATER
Turbidity(in NTU)0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.6
0.8
1
Block-A
Rd-2
Block-B
Rd-5
Block-B
Rd-6
Block-C
Rd-3
Block-D
Rd-6
Block-D
Rd-8
Block-E
Rd-1
Block-F
Rd-1
Block-F
Rd-16
Block-F
Rd-21
Block-G
Rd-1
Block-G
Rd-3
Block-G
Rd-4
Block-I
Rd-2
BASHUNDHARA FILTER WATER
Turbidity(in NTU)

18. 18
Puran Dhaka area water quality measurements
a. Puran Dhaka Tap water:
Puran Dhaka Tap water
Sample ID (Location) EC(in μS/cm) TDS(in ppm) % of NaCl pH DO(in mg/L) Turbidity(in NTU)
Joy Kali Mondir 330 165 0.6 6.6 7.9 4
Ranking Street 532 266 1 6.6 6.6 3.7
Public toilet, Johir Rayhan Rd220 110 0.4 6.7 4 8.6
Bangshal Rd 720 362 1.4 6.4 5.5 2.5
Birdem Hospital 669 325 1.3 6.4 5 5.8
House- 2B/A palton 669 335 1.3 6.6 7.1 2.2
H-97, Kakrail 367 184 0.7 6.7 7.5 0.6
Topkhana Rd 503 352 1 6.7 7.7 0.4
Bangshal Pond water 620 312 1.2 6.6 6.8 18
Shahidullah Hall, Pond water520 263 1 6.7 2 29
NajimUDdin Rd,H-190 190 95 0.4 5.9 7.3 1.27
Abdul Hasnat Rd 751 377 1.5 5.9 7.7 0.3
Thathari Bazar, DCC Rd 948 223 0.9 6.3 7.8 0.2
Bangshal Tubewell 591 295 1.2 6.3 8 0.09
Aftab resturant, Nawabkatra Rd243 121 0.5 6.7 7.3 0.02
Shahidullah Hall Cafeteria 198 99 0.4 6.7 5 1.8
Hosseni Dalan Rd, H-9/3 367 183 0.7 6.6 6 1.8
Islampur, H-16/5 498 249 1 6.5 7.6 1.7
Bakshibazar, City corporation, H-5/6337 168 0.7 6.6 7.3 0.06
Hosseni Dalan, H- 15/6 782 391 1.5 6.5 6.4 2.5
Islampur, H-10/8 167 284 1.1 6.3 6.7 0.1
Tara moshjid Rd, 14/8 342 171 0.7 5.9 7.3 3.4
Tara moshjid Rd, 12/7 342 271 0.7 6 7.5 1.5
Bakshibazar, h-19/1 328 163 0.6 6.2 7.6 0
Islampur Rd, Jamuna bank 427 213 0.8 6.7 7.8 1.8
Hazi Abdul Rashid Rd, Bangshal542 270 1.1 6.6 7.8 0.08
Bhoj resturant, Lakshmi Bazar289 144 0.6 6.6 8 0.4
Abdul Hasnat Rd, Bangshal541 270 1.1 6.6 4.4 2.3
Grand Nawab Resturant, Abdul Hasnat Rd469 235 0.9 6.7 7.6 0.8
Lakshmi Bazar, shadarghat, DIT market295 147 0.6 6.6 7.9 0.7
113/9, Islampur, Amin Mantion544 272 1.1 6.5 8 1.3
Karjon Hall DU, pond water247 123 0.5 6.6 7.7 9.8
Hanif Biriyani, Chakbazar 294 147 0.6 6.8 7.9 0.12
RoyalResturant , Lalbagh 774 389 1.5 6.8 7.2 0.2
Kolkata Kachhi Ghor 287 143 0.6 7 7.4 2.6
Payra Chattor, Chakbazara527 204 1 6.8 7.7 0.4
Parameters

19. 19
b. Puran Dhaka Filter water:
i. Parameter 1: Electrical conductivity (EC)
Puran Dhaka Filter water
Sample ID (Location) EC(in μS/cm) TDS(in ppm) % of NaCl pH DO(in mg/L) Turbidity(in NTU)
Ranking Street 324 162 0.6 6.8 7.2 4.1
Hosseni Dalan Rd, H-9/3 303 152 0.6 6.9 6.1 0.1
Islampur, H-15/6 531 267 1 6.7 6.8 0.05
Bokshibazar, City Corporation, H-5/C319 160 0.6 6.5 6.4 0
Hosseni Dalan Rd, H-15/6 554 278 1.1 6.5 6.8 5.1
Islampur, H-10/8 547 273 1.1 6.2 7.4 1.2
Tara moshjid Rd, H-14/1 236 118 0.5 6.2 7.3 0.31
Tara moshjid Rd, H-12/1 173 86 0.3 6.2 7.5 0.07
Bokshibazar, h-19/1 331 165 0.6 6.4 7.2 0.06
Narinda, Police feri 442 224 0.9 6.9 6.7 0.1
Abul Hasnat Rd, H-17, Bangshal442 220 0.9 6.6 6.8 0.3
Abul Hasnat Rd, H-39, Bangshal547 273 1.1 6.5 7.7 3.9
Sadek Rd, Miron Jolla Bazar 428 214 0.8 6.5 7.8 0.16
Abul Hasnat Rd, H-28, Bangshal558 270 1.1 6.6 8.1 0.04
Royal Resturant, LalBagh 324 162 0.6 7.1 7.8 1.8
Ahsanmanjil, Manju Mama Tea-stall265 133 0.5 7.3 7.4 0.7
Mitford Hospital 733 367 1.4 6.8 7.3 1.1
Horonath Ghosh Rd, Lalbagh, H-23/1556 278 1.1 6.8 7.7 0.4
Tea Stall lalbagh 300 149 0.6 6.9 7.8 0.2
Ahsanmanjil 257 128 0.6 7.1 7.8 0.4
MaaBhoboDhara, Chakbazar782 391 1.5 6.7 7.8 1
Nanna Biriyani, Nazira bazar336 168 0.7 7 7.8 0.3
Parameters330
532
220
720
669
669
367
503
620
520
190
751
948
591
243
198
367
498
337
782
167
342
342
328
427
542
289
541
469
295
544
247
294
774
287
527
0
100
200
300
400
500
600
700
800
900
1000
JoyKaliMondir
RankingStreet
Publictoilet,Johir…
BangshalRd
BirdemHospital
House-2B/Apalton
H-97,Kakrail
TopkhanaRd
BangshalPondwater
ShahidullahHall,…
NajimUDdinRd,H-190
AbdulHasnatRd
ThathariBazar,DCCRd
BangshalTubewell
Aftabresturant,…
ShahidullahHall…
HosseniDalanRd,H-…
Islampur,H-16/5
Bakshibazar,City…
HosseniDalan,H-15/6
Islampur,H-10/8
TaramoshjidRd,14/8
TaramoshjidRd,12/7
Bakshibazar,h-19/1
IslampurRd,Jamuna…
HaziAbdulRashidRd,…
Bhojresturant,…
AbdulHasnatRd,…
GrandNawab…
LakshmiBazar,…
113/9,Islampur,…
KarjonHallDU,pond…
HanifBiriyani,…
RoyalResturant,…
KolkataKachhiGhor
PayraChattor,…
PURAN DHAKA TAP WATER
EC(in μS/cm)

20. 20
ii. Parameter 2: Total Dissolved Solid (TDS)
324
303
531
319
554
547
236
173
331
442
442
547
428
558
324
265
733
556
300
257
782
336
0
100
200
300
400
500
600
700
800
900
PURAN DHAKA FILTER WATER
EC(in μS/cm)
165
266
110
362
325
335
184
352
312
263
95
377
223
295
121
99
183
249
168
391
284
171
271
163
213
270
144
270
235
147
272
123
147
389
143
204
0
50
100
150
200
250
300
350
400
450
JoyKaliMondir
RankingStreet
Publictoilet,Johir…
BangshalRd
BirdemHospital
House-2B/Apalton
H-97,Kakrail
TopkhanaRd
BangshalPondwater
ShahidullahHall,Pond…
NajimUDdinRd,H-190
AbdulHasnatRd
ThathariBazar,DCCRd
BangshalTubewell
Aftabresturant,…
ShahidullahHall…
HosseniDalanRd,H-9/3
Islampur,H-16/5
Bakshibazar,City…
HosseniDalan,H-15/6
Islampur,H-10/8
TaramoshjidRd,14/8
TaramoshjidRd,12/7
Bakshibazar,h-19/1
IslampurRd,Jamuna…
HaziAbdulRashidRd,…
Bhojresturant,…
AbdulHasnatRd,…
GrandNawab…
LakshmiBazar,…
113/9,Islampur,Amin…
KarjonHallDU,pond…
HanifBiriyani,…
RoyalResturant,…
KolkataKachhiGhor
PayraChattor,…
PURAN DHAKA TAP WATER
TDS(in ppm)

21. 21
iii. Parameter 3: % of Sodium Chloride (NaCl)
162
152
267
160
278
273
118
86
165
224
220
273
214
270
162
133
367
278
149
128
391
168
0
50
100
150
200
250
300
350
400
450
PURAN DHAKA FILTER WATER
TDS(in ppm)
0.6
1
0.4
1.4
1.3
1.3
0.7
1
1.2
1
0.4
1.5
0.9
1.2
0.5
0.4
0.7
1
0.7
1.5
1.1
0.7
0.7
0.6
0.8
1.1
0.6
1.1
0.9
0.6
1.1
0.5
0.6
1.5
0.6
1
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
JoyKaliMondir
RankingStreet
Publictoilet,Johir…
BangshalRd
BirdemHospital
House-2B/Apalton
H-97,Kakrail
TopkhanaRd
BangshalPondwater
ShahidullahHall,…
NajimUDdinRd,H-190
AbdulHasnatRd
ThathariBazar,DCCRd
BangshalTubewell
Aftabresturant,…
ShahidullahHall…
HosseniDalanRd,H-…
Islampur,H-16/5
Bakshibazar,City…
HosseniDalan,H-15/6
Islampur,H-10/8
TaramoshjidRd,14/8
TaramoshjidRd,12/7
Bakshibazar,h-19/1
IslampurRd,Jamuna…
HaziAbdulRashidRd,…
Bhojresturant,…
AbdulHasnatRd,…
GrandNawab…
LakshmiBazar,…
113/9,Islampur,Amin…
KarjonHallDU,pond…
HanifBiriyani,…
RoyalResturant,…
KolkataKachhiGhor
PayraChattor,…
PURAN DHAKA TAP WATER
% of NaCl

22. 22
iv. Parameter 4: pH Level
0.6
0.6
1
0.6
1.1
1.1
0.5
0.3
0.6
0.9
0.9
1.1
0.8
1.1
0.6
0.5
1.4
1.1
0.6
0.6
1.5
0.7
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
PURAN DHAKA FILTER WATER
% of NaCl6.6
6.6
6.7
6.4
6.4
6.6
6.7
6.7
6.6
6.7
5.9
5.9
6.3
6.3
6.7
6.7
6.6
6.5
6.6
6.5
6.3
5.9
6
6.2
6.7
6.6
6.6
6.6
6.7
6.6
6.5
6.6
6.8
6.8
7
6.8
JOYKALIMONDIR
RANKINGSTREET
PUBLICTOILET,JOHIR…
BANGSHALRD
BIRDEMHOSPITAL
HOUSE-2B/APALTON
H-97,KAKRAIL
TOPKHANARD
BANGSHALPOND…
SHAHIDULLAHHALL,…
NAJIMUDDINRD,H-190
ABDULHASNATRD
THATHARIBAZAR,DCC…
BANGSHALTUBEWELL
AFTABRESTURANT,…
SHAHIDULLAHHALL…
HOSSENIDALANRD,…
ISLAMPUR,H-16/5
BAKSHIBAZAR,CITY…
HOSSENIDALAN,H-…
ISLAMPUR,H-10/8
TARAMOSHJIDRD,14/8
TARAMOSHJIDRD,12/7
BAKSHIBAZAR,H-19/1
ISLAMPURRD,…
HAZIABDULRASHID…
BHOJRESTURANT,…
ABDULHASNATRD,…
GRANDNAWAB…
LAKSHMIBAZAR,…
113/9,ISLAMPUR,…
KARJONHALLDU,…
HANIFBIRIYANI,…
ROYALRESTURANT,…
KOLKATAKACHHIGHOR
PAYRACHATTOR,…
PURAN DHAKA TAP WATER
pH

23. 23
v. Parameter 5: Dissolved Oxygen (DO)
6.8
6.9
6.7
6.5
6.5
6.2
6.2
6.2
6.4
6.9
6.6
6.5
6.5
6.6
7.1
7.3
6.8
6.8
6.9
7.1
6.7
7
PURAN DHAKA FILTER WATER
pH7.9
6.6
4
5.5
5
7.1
7.5
7.7
6.8
2
7.3
7.7
7.8
8
7.3
5
6
7.6
7.3
6.4
6.7
7.3
7.5
7.6
7.8
7.8
8
4.4
7.6
7.9
8
7.7
7.9
7.2
7.4
7.7
0
1
2
3
4
5
6
7
8
9
JoyKaliMondir
RankingStreet
Publictoilet,Johir…
BangshalRd
BirdemHospital
House-2B/Apalton
H-97,Kakrail
TopkhanaRd
BangshalPondwater
ShahidullahHall,…
NajimUDdinRd,H-190
AbdulHasnatRd
ThathariBazar,DCCRd
BangshalTubewell
Aftabresturant,…
ShahidullahHall…
HosseniDalanRd,H-…
Islampur,H-16/5
Bakshibazar,City…
HosseniDalan,H-15/6
Islampur,H-10/8
TaramoshjidRd,14/8
TaramoshjidRd,12/7
Bakshibazar,h-19/1
IslampurRd,Jamuna…
HaziAbdulRashidRd,…
Bhojresturant,…
AbdulHasnatRd,…
GrandNawab…
LakshmiBazar,…
113/9,Islampur,…
KarjonHallDU,pond…
HanifBiriyani,…
RoyalResturant,…
KolkataKachhiGhor
PayraChattor,…
PURAN DHAKA TAP WATER
DO(in mg/L)

24. 24
vi. Parameter 6: Turbidity
7.2
6.1
6.8
6.4
6.8
7.4
7.3
7.5
7.2
6.7
6.8
7.7
7.8
8.1
7.8
7.4
7.3
7.7
7.8
7.8
7.8
7.8
0
1
2
3
4
5
6
7
8
9
PURAN DHAKA FILTER WATER
DO(in mg/L)4
3.7
8.6
2.5
5.8
2.2
0.6
0.4
18
29
1.27
0.3
0.2
0.09
0.02
1.8
1.8
1.7
0.06
2.5
0.1
3.4
1.5
0
1.8
0.08
0.4
2.3
0.8
0.7
1.3
9.8
0.12
0.2
2.6
0.40
5
10
15
20
25
30
35
JoyKaliMondir
RankingStreet
Publictoilet,Johir…
BangshalRd
BirdemHospital
House-2B/Apalton
H-97,Kakrail
TopkhanaRd
BangshalPondwater
ShahidullahHall,…
NajimUDdinRd,H-190
AbdulHasnatRd
ThathariBazar,DCCRd
BangshalTubewell
Aftabresturant,…
ShahidullahHall…
HosseniDalanRd,H-…
Islampur,H-16/5
Bakshibazar,City…
HosseniDalan,H-15/6
Islampur,H-10/8
TaramoshjidRd,14/8
TaramoshjidRd,12/7
Bakshibazar,h-19/1
IslampurRd,Jamuna…
HaziAbdulRashidRd,…
Bhojresturant,…
AbdulHasnatRd,…
GrandNawab…
LakshmiBazar,…
113/9,Islampur,Amin…
KarjonHallDU,pond…
HanifBiriyani,…
RoyalResturant,…
KolkataKachhiGhor
PayraChattor,…
PURAN DHAKA TAP WATER
Turbidity(in NTU)

25. 25
When we analysed the water samples from Puran Dhaka, we found out that several places near
Bangshal, Chakbazar, Hosseni Dalan, Islampur have very high levels on EC in tap and filter waters
and even in places like Mitford and BIRDEM Hospitals. TDS is the only parameter that was
consistently with the normal range for all the tap and filter water samples of Puran Dhaka. We also
found out that, most places around Puran Dhaka have much higher % of NaCl than normal and
also in several places the water is slightly acidic. Alarmingly, few places like: Bangshal, Hosseni
Dalan, the students’ halls etc have very low levels of DO in the tap/open waters, and the filter
waters of Puran Dhaka have DO very close to 7 mg/L in most places. The turbidity is highest at
the open water bodies, except these most of the samples had low turbidity levels. We recommend
that people in Puran Dhaka must refine or filter their water before drinking it or cooking with it.
In many places several parameters of the tap and open waters were well above or below the normal
range, this can be a very important issue for the health of the residents of Puran Dhaka.
4.1
0.1
0.05
0
5.1
1.2
0.31
0.07
0.06
0.1
0.3
3.9
0.16
0.04
1.8
0.7
1.1
0.4
0.2
0.4
1
0.3
0
1
2
3
4
5
6
PURAN DHAKA FILTER WATER
Turbidity(in NTU)

26. 26
Uttara area water quality measurements
a. Uttara Tap water:
b. Uttara Filter water:
Uttara Area Tap Water
Sample ID (Location) EC(in μS/cm) TDS(in ppm) % of NaCl pH DO(in mg/L) Turbidity(in NTU)
Sector-1 Rd-2 House-2 233 115 0.5 6.7 7.7 0
Sector-1 Rd-6 House-26 244 122 0.5 6.9 7.9 0.4
Sector-1 Rd-5 House-6 182 91 0.4 6.9 7.3 1.2
Sector-2 Baitus Salah Masjid 242 121 0.5 7 7.8 0.7
Sector-3 Rd-7/C 252 126 0.5 6.8 7.7 0.3
Sector-3 Rd-15 H-47 254 127 0.5 6.8 7.4 0.43
Sector-3 Rd-10/C H-7 287 143 0.6 6.8 7.7 0.2
Sector-3 Rd-13/A Nursery 261 131 0.5 6.8 7.5 0.4
Sector-4 Rd-9 234 117 0.5 6.8 7.1 0.8
Sector-4 Park 191 96 0.4 6.7 7 0.02
Sector-4 Rd-2/F 264 132 0.5 6.3 7.1 1.7
Sector-5 Rd-1 248 124 0.5 7 6.7 2.2
Sector-5 Rd-6 274 137 0.5 7.1 7.37 0.9
Sector-5 Rd-9 188 94 0.8 6.8 7 0.1
Sector-5 Rd-3/A 283 142 0.6 6.4 7.3 0.2
Sector-6 Rd-1 271 136 0.5 6.7 7.1 1.2
Secttor-6 Rd-4 289 145 0.6 7.1 7.37 0.9
Sector-6 Rd-7 190 95 0.4 6.5 7.7 0.4
Sector-10 Rd-10 H-13 264 132 0.5 6.7 6.7 1.05
Sector-10 Rd-11 H-8 262 131 0.5 6.5 8.8 2.9
Sector-11 Rd-9 H-20 249 124 0.5 6.7 7.6 0.3
Sector-11 Rd-17 H-12 203 102 0.4 6.7 7.3 0.2
Sector-12 Rd-1 H-82 293 147 0.6 6.7 7.5 3.1
Sector-12 Rd-12 H-17 317 154 0.6 6.7 7.4 0.9
Sector-13 Rd-4 H-32 718 360 1.4 6.7 7.6 0.3
Sector-13 Rd-6 H-10 527 265 1 7.2 7.6 0.3
Sector-13 Rd-10 H-3/A 807 407 1.6 7.1 8.2 0.6
Sector-14 Rd-16 H-37 311 154 0.6 7.2 6.9 0.25
Sector-14 Santo-Mariam Uni 297 148 0.6 7.1 5.7 1.3
Sector-15 Diabari Rd-4 277 138 0.5 6.6 7.4 0.02
Sector-15 Rd-17 H-34 333 165 0.6 7.2 7.2 5.1
Sector-15 R-7 H-1/C 537 267 1 7.1 7.7 1.2
Parameters

27. 27
i. Parameter 1: Electrical conductivity (EC)
Uttara Area Filter Water
Sample ID (Location) EC(in μS/cm) TDS(in ppm) % of NaCl pH DO(in mg/L) Turbidity(in NTU)
Sector-1 Rd-2 House-2 235 115 0.5 6.8 7.5 0.2
Sector-1 Rd-6 House-26 231 116 0.5 6.7 7.9 0.14
Sector-1 Rd-5 House-6 229 114 0.4 7.2 7.7 0.1
Sector-2 Baitus Salah Masjid 229 114 0.4 6.7 8.1 0.16
Sector-3 Rd-10/C H-7 260 130 0.5 6.9 7.6 0.1
Sector-4 Rd-9 201 100 0.4 6.8 7.6 0.07
Sector-4 Park 21 10 0 6.8 6.9 0.3
Sector-5 Rd-1 150 75 0.3 6.6 8.1 0.2
Sector-5 Rd-6 309 154 0.6 6.6 7.5 0.1
Sector-5 Rd-3/A 203 102 0.4 6.8 7.7 0.08
Sector-6 Rd-3 13 6.6 0 6.7 6.1 0.3
Secttor-6 Rd-4 258 129 0.5 6.5 6.8 0.3
Sector-10 Rd-10 H-13 249 124 0.5 6.7 7.4 0.4
Sector-10 Rd-11 H-8 106 53 0.2 6.7 7.5 0.07
Sector-11 Rd-9 H-20 210 105 0.4 6.8 7.4 0.3
Sector-11 Rd-17 H-12 243 121 0.5 6.8 7.5 0.2
Sector-12 Rd-1 H-82 289 145 0.6 6.6 8.2 0.66
Sector-12 Rd-12 H-17 297 148 0.6 6.7 7.2 1.2
Sector-13 Rd-10 H-3/A 299 149 0.6 7.2 6.9 0.45
Sector-14 Rd-7 H-1/C 455 227 0.9 7.4 7.3 0.2
Sector-14 Santo-Mariam Uni 98 49 0.2 7.4 7.6 0.05
Sector-15 Rd-17 H-36 317 158 0.6 7.5 7.5 3.3
Sector-15 Rd-11 H-5/B 392 199 0.8 7.4 7.9 0.17
Parameters
233
244
182
242
252
254
287
261
234
191
264
248
274
188
283
271
289
190
264
262
249
203
293
317
718
527
807
311
297
277
333
537
0
100
200
300
400
500
600
700
800
900
Sector-1Rd-2…
Sector-1Rd-6…
Sector-1Rd-5…
Sector-2Baitus…
Sector-3Rd-7/C
Sector-3Rd-15H-…
Sector-3Rd-10/C…
Sector-3Rd-13/A…
Sector-4Rd-9
Sector-4Park
Sector-4Rd-2/F
Sector-5Rd-1
Sector-5Rd-6
Sector-5Rd-9
Sector-5Rd-3/A
Sector-6Rd-1
Secttor-6Rd-4
Sector-6Rd-7
Sector-10Rd-10…
Sector-10Rd-11…
Sector-11Rd-9H-…
Sector-11Rd-17…
Sector-12Rd-1H-…
Sector-12Rd-12…
Sector-13Rd-4H-…
Sector-13Rd-6H-…
Sector-13Rd-10…
Sector-14Rd-16…
Sector-14Santo-…
Sector-15Diabari…
Sector-15Rd-17…
Sector-15R-7H-1/C
UTTARA TAP WATER
EC(in μS/cm)

28. 28
ii. Parameter 2: Total Dissolved Solid (TDS)
235
231
229
229
260
201
21
150
309
203
13
258
249
106
210
243
289
297
299
455
98
317
392
0
50
100
150
200
250
300
350
400
450
500
UTTARA FILTER WATER
EC(in μS/cm)
115
122
91
121
126
127
143
131
117
96
132
124
137
94
142
136
145
95
132
131
124
102
147
154
360
265
407
154
148
138
165
267
0
50
100
150
200
250
300
350
400
450
Sector-1Rd-2…
Sector-1Rd-6…
Sector-1Rd-5…
Sector-2Baitus…
Sector-3Rd-7/C
Sector-3Rd-15H-47
Sector-3Rd-10/C…
Sector-3Rd-13/A…
Sector-4Rd-9
Sector-4Park
Sector-4Rd-2/F
Sector-5Rd-1
Sector-5Rd-6
Sector-5Rd-9
Sector-5Rd-3/A
Sector-6Rd-1
Secttor-6Rd-4
Sector-6Rd-7
Sector-10Rd-10H-…
Sector-10Rd-11H-8
Sector-11Rd-9H-20
Sector-11Rd-17H-…
Sector-12Rd-1H-82
Sector-12Rd-12H-…
Sector-13Rd-4H-32
Sector-13Rd-6H-10
Sector-13Rd-10H-…
Sector-14Rd-16H-…
Sector-14Santo-…
Sector-15Diabari…
Sector-15Rd-17H-…
Sector-15R-7H-1/C
UTTARA TAP WATER
TDS(in ppm)

29. 29
iii. Parameter 3: % of Sodium Chloride (NaCl)
115
116
114
114
130
100
10
75
154
102
6.6
129
124
53
105
121
145
148
149
227
49
158
199
0
50
100
150
200
250
UTTARA FILTER WATER
TDS(in ppm)
0.5
0.5
0.4
0.5
0.5
0.5
0.6
0.5
0.5
0.4
0.5
0.5
0.5
0.8
0.6
0.5
0.6
0.4
0.5
0.5
0.5
0.4
0.6
0.6
1.4
1
1.6
0.6
0.6
0.5
0.6
1
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
Sector-1Rd-2…
Sector-1Rd-6…
Sector-1Rd-5…
Sector-2Baitus…
Sector-3Rd-7/C
Sector-3Rd-15H-47
Sector-3Rd-10/C…
Sector-3Rd-13/A…
Sector-4Rd-9
Sector-4Park
Sector-4Rd-2/F
Sector-5Rd-1
Sector-5Rd-6
Sector-5Rd-9
Sector-5Rd-3/A
Sector-6Rd-1
Secttor-6Rd-4
Sector-6Rd-7
Sector-10Rd-10…
Sector-10Rd-11H-8
Sector-11Rd-9H-20
Sector-11Rd-17…
Sector-12Rd-1H-82
Sector-12Rd-12…
Sector-13Rd-4H-32
Sector-13Rd-6H-10
Sector-13Rd-10…
Sector-14Rd-16…
Sector-14Santo-…
Sector-15Diabari…
Sector-15Rd-17…
Sector-15R-7H-1/C
UTTARA TAP WATER
% of NaCl

30. 30
iv. Parameter 4: pH Level
0.5
0.5
0.4
0.4
0.5
0.4
0
0.3
0.6
0.4
0
0.5
0.5
0.2
0.4
0.5
0.6
0.6
0.6
0.9
0.2
0.6
0.8
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
UTTARA FILTER WATER
% of NaCl6.7
6.9
6.9
7
6.8
6.8
6.8
6.8
6.8
6.7
6.3
7
7.1
6.8
6.4
6.7
7.1
6.5
6.7
6.5
6.7
6.7
6.7
6.7
6.7
7.2
7.1
7.2
7.1
6.6
7.2
7.1
SECTOR-1RD-2…
SECTOR-1RD-6…
SECTOR-1RD-5…
SECTOR-2BAITUS…
SECTOR-3RD-7/C
SECTOR-3RD-15H-…
SECTOR-3RD-10/C…
SECTOR-3RD-13/A…
SECTOR-4RD-9
SECTOR-4PARK
SECTOR-4RD-2/F
SECTOR-5RD-1
SECTOR-5RD-6
SECTOR-5RD-9
SECTOR-5RD-3/A
SECTOR-6RD-1
SECTTOR-6RD-4
SECTOR-6RD-7
SECTOR-10RD-10…
SECTOR-10RD-11…
SECTOR-11RD-9H-…
SECTOR-11RD-17…
SECTOR-12RD-1H-…
SECTOR-12RD-12…
SECTOR-13RD-4H-…
SECTOR-13RD-6H-…
SECTOR-13RD-10…
SECTOR-14RD-16…
SECTOR-14SANTO-…
SECTOR-15…
SECTOR-15RD-17…
SECTOR-15R-7H-1/C
UTTARA TAP WATER
pH

31. 31
v. Parameter 5: Dissolved Oxygen (DO)
6.8
6.7
7.2
6.7
6.9
6.8
6.8
6.6
6.6
6.8
6.7
6.5
6.7
6.7
6.8
6.8
6.6
6.7
7.2
7.4
7.4
7.5
7.4
UTTARA FILTER WATER
pH
7.7
7.9
7.3
7.8
7.7
7.4
7.7
7.5
7.1
7
7.1
6.7
7.37
7
7.3
7.1
7.37
7.7
6.7
8.8
7.6
7.3
7.5
7.4
7.6
7.6
8.2
6.9
5.7
7.4
7.2
7.7
0
1
2
3
4
5
6
7
8
9
10
Sector-1Rd-2…
Sector-1Rd-6…
Sector-1Rd-5…
Sector-2Baitus…
Sector-3Rd-7/C
Sector-3Rd-15H-47
Sector-3Rd-10/C…
Sector-3Rd-13/A…
Sector-4Rd-9
Sector-4Park
Sector-4Rd-2/F
Sector-5Rd-1
Sector-5Rd-6
Sector-5Rd-9
Sector-5Rd-3/A
Sector-6Rd-1
Secttor-6Rd-4
Sector-6Rd-7
Sector-10Rd-10…
Sector-10Rd-11H-8
Sector-11Rd-9H-20
Sector-11Rd-17…
Sector-12Rd-1H-82
Sector-12Rd-12…
Sector-13Rd-4H-32
Sector-13Rd-6H-10
Sector-13Rd-10…
Sector-14Rd-16…
Sector-14Santo-…
Sector-15Diabari…
Sector-15Rd-17…
Sector-15R-7H-1/C
UTTARA TAP WATER
DO(in mg/L)

32. 32
vi. Parameter 6: Turbidity
7.5
7.9
7.7
8.1
7.6
7.6
6.9
8.1
7.5
7.7
6.1
6.8
7.4
7.5
7.4
7.5
8.2
7.2
6.9
7.3
7.6
7.5
7.9
0
1
2
3
4
5
6
7
8
9
UTTARA FILTER WATER
DO(in mg/L)0
0.4
1.2
0.7
0.3
0.43
0.2
0.4
0.8
0.02
1.7
2.2
0.9
0.1
0.2
1.2
0.9
0.4
1.05
2.9
0.3
0.2
3.1
0.9
0.3
0.3
0.6
0.25
1.3
0.02
5.1
1.2
0
1
2
3
4
5
6
Sector-1Rd-2…
Sector-1Rd-6…
Sector-1Rd-5…
Sector-2Baitus…
Sector-3Rd-7/C
Sector-3Rd-15H-47
Sector-3Rd-10/C…
Sector-3Rd-13/A…
Sector-4Rd-9
Sector-4Park
Sector-4Rd-2/F
Sector-5Rd-1
Sector-5Rd-6
Sector-5Rd-9
Sector-5Rd-3/A
Sector-6Rd-1
Secttor-6Rd-4
Sector-6Rd-7
Sector-10Rd-10…
Sector-10Rd-11H-8
Sector-11Rd-9H-20
Sector-11Rd-17…
Sector-12Rd-1H-82
Sector-12Rd-12…
Sector-13Rd-4H-32
Sector-13Rd-6H-10
Sector-13Rd-10…
Sector-14Rd-16…
Sector-14Santo-…
Sector-15Diabari…
Sector-15Rd-17…
Sector-15R-7H-1/C
UTTARA TAP WATER
Turbidity(in NTU)

33. 33
When we tested the water samples of Uttara area we noticed that, the water quality of most of the
sectors of Uttara was good and in normal level for all of the six parameters measurements we that
we used. Exceptions were water samples from Sector-13, 14 and 15, where the EC and % of NaCl
were very much higher than normal. TDS was in normal range but a little high in Sector-13 and
15. All the tap and filter waters of Uttara have DO well within the normal range, the pH of the
waters is is most cases near and/or close to pH 7. We found that all the water across Uttara had
turbidity present in them however, the turbidity level was very low and within the normal standard;
comparatively Sector-15 had a little higher turbidity level to the rest of Uttara area but that too was
in normal range. We can conclude that, both tap and filter waters of Uttara are of good quality and
can be used by the people for day to day purposes. Moreover, we suggest that was filter water of
this area is much better than tap water so the residents should use filter water for drinking and
cooking in order to stay healthy.
0.2
0.14
0.1
0.16
0.1
0.07
0.3
0.2
0.1
0.08
0.3
0.3
0.4
0.07
0.3
0.2
0.66
1.2
0.45
0.2
0.05
3.3
0.17
0
0.5
1
1.5
2
2.5
3
3.5
UTTARA FILTER WATER
Turbidity(in NTU)

34. 34
Mirpur area water quality measurements
a. Mirpur Tap water:
b. Mirpur area filter water:
Mirpur Area Tap Water
Sample ID (Location) EC(in μS/cm) TDS(in ppm) % of NaCl pH DO(in mg/L) Turbidity(in NTU)
Mirpur-1 Shah Ali Majar 411 205 0.8 6.9 8.2 0.1
Mirpur-1 Tolarbagh 388 195 0.8 6.9 6.5 3.7
Mirpur-2 Stadium 218 109 0.4 6.8 7.8 0.43
Mirpur-2 60feet Road 265 131 0.5 6.8 6.5 25
Mirpur-6 Block-D Rd-10 H-13 289 145 0.6 7 7.3 0.11
Mirpur-6 Block-D Rd-12 H-11 315 157 0.6 7.1 7.7 1.46
Mirpur-7 Rd-3 H-150 322 162 0.6 6.9 6.9 0.37
Mirpur-7 Rd-4 H-823 243 121 0.5 6.7 6.9 0.2
Mirpur-10 Shah Ali market 286 143 0.6 6.9 8 0.05
Mirpur-10 Rd-6 H-10 247 137 0.5 6.7 6 3.3
Mirpur-11.5 Rupnagar 273 136 0.5 7 6.9 5.6
Mirpur-11.5 Pallabi Super Market 285 142 0.6 7 7.2 0.2
Mirpur-12 Pallabi 291 146 0.6 7 7.5 16
Mirpur-12 DOHS Masjid 290 145 0.6 6.6 7.1 0.3
Mirpur-13 14/5, Shornali Garden 328 164 0.6 7.1 7.7 1.46
Mirpur-14 Bhashantek 290 145 0.6 7.3 7.5 0.1
Mirpur-14 Ibrahimpur 295 148 0.6 7.5 7.8 3.73
Mirpur-14 Kachukhet 203 101 0.4 6.8 7.5 4.7
Mirpur DOHS Rd-9 H-20 259 129 0.5 6.2 7.6 0.08
Mirpur DOHS Rd-13/A H-52 311 155 0.6 6.8 7.8 0
Kazipara Rd-19 H-89 273 137 0.5 6.9 7.3 0.1
Kazipara CHT Express Restaurant 268 134 0.5 6.8 7.9 0
Shewrapara Rd-7 H-12 257 129 0.5 6.6 7.8 0.06
Shewrapara IQRA Restaurant 300 145 0.6 6.6 7.9 0.12
Parameters

35. 35
i. Parameter 1: Electrical conductivity (EC)
Mirpur Area Filter Water
Sample ID (Location) EC(in μS/cm) TDS(in ppm) % of NaCl pH DO(in mg/L) Turbidity(in NTU)
Mirpur-1 Shah Ali Majar 259 129 0.5 7 7.7 0.2
Mirpur-1 Tolarbagh 212 105 0.9 7 7.8 0
Mirpur-2 Stadium 143 121 0.5 7.6 9.2 0.4
Mirpur-2 60feet Road 385 192 0.8 7.3 7.6 0.2
Mirpur-6 Block-D Rd-10 H-13 282 141 0.6 8 7.4 0.14
Mirpur-6 Block-D Rd-12 H-11 315 157 0.6 7.7 7.4 0.19
Mirpur-7 Rd-3 H-150 98 49 0.2 6.8 7.1 0
Mirpur-7 Rd-4 H-823 77 38 0.2 7 7.6 0.04
Mirpur-12 Purobi 99 49 0.2 7.2 7.7 0.08
Mirpur-12 Pallabi 264 132 0.5 7.5 7.5 0.2
Mirpur-12 DOHS Avenue Rd-10 H-6 311 155 0.6 7.4 7.8 0.13
Mirpur-12 DOHS Avenue-2 Rd-3 297 149 0.6 6.7 7.5 5.2
Mirpur-13 14/5, Shornali Garden 327 164 0.6 7.1 7.4 0
Mirpur-14 Bhashantek 24 12 0 7.6 7.6 0.38
Mirpur-14 Ibrahimpur 234 117 0.5 8.2 10.8 0.3
Mirpur-14 Kachukhet 198 99 0.4 7 7.8 0.2
Mirpur DOHS Rd-9 H-20 256 128 0.5 6.8 7.9 0
Mirpur DOHS Rd-13/A H-52 286 144 0.6 7 8.1 0
Kazipara Rd-19 H-89 266 133 0.5 6.6 7.7 0.02
Kazipara CHT Express Restaurant 253 126 0 6.8 7.8 0
Shewrapara Rd-7 H-12 261 131 0.5 6.7 7.9 0.08
Shewrapara IQRA Restaurant 100 50 0.2 6.7 8 0.05
Parameters
411
388
218
265
289
315
322
243
286
247
273
285
291
290
328
290
295
203
259
311
273
268
257
300
0
50
100
150
200
250
300
350
400
450
MIRPUR TAP WATER
EC(in μS/cm)

36. 36
ii. Parameter 2: Total Dissolved Solid (TDS)
259
212
143
385
282
315
98
77
99
264
311
297
327
24
234
198
256
286
266
253
261
100
0
50
100
150
200
250
300
350
400
450
MIRPUR FILTER WATER
EC(in μS/cm)
205
195
109
131
145
157
162
121
143
137
136
142
146
145
164
145
148
101
129
155
137
134
129
145
0
50
100
150
200
250
MIRPUR TAP WATER
TDS(in ppm)

37. 37
iii. Parameter 3: % of Sodium Chloride (NaCl)
129
105
121
192
141
157
49
38
49
132
155
149
164
12
117
99
128
144
133
126
131
50
0
50
100
150
200
250
MIRPUR FILTER WATER
TDS(in ppm)
0.8
0.8
0.4
0.5
0.6
0.6
0.6
0.5
0.6
0.5
0.5
0.6
0.6
0.6
0.6
0.6
0.6
0.4
0.5
0.6
0.5
0.5
0.5
0.6
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
MIRPUR TAP WATER
% of NaCl

38. 38
iv. Parameter 4: pH Level
0.5
0.9
0.5
0.8
0.6
0.6
0.2
0.2
0.2
0.5
0.6
0.6
0.6
0
0.5
0.4
0.5
0.6
0.5
0
0.5
0.2
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
MIRPUR FILTER WATER
% of NaCl
6.9
6.9
6.8
6.8
7
7.1
6.9
6.7
6.9
6.7
7
7
7
6.6
7.1
7.3
7.5
6.8
6.2
6.8
6.9
6.8
6.6
6.6
MIRPUR TAP WATER
pH

39. 39
v. Parameter 5: Dissolved Oxygen (DO)
7
7
7.6
7.3
8
7.7
6.8
7
7.2
7.5
7.4
6.7
7.1
7.6
8.2
7
6.8
7
6.6
6.8
6.7
6.7
MIRPUR FILTER WATER
pH
8.2
6.5
7.8
6.5
7.3
7.7
6.9
6.9
8
6
6.9
7.2
7.5
7.1
7.7
7.5
7.8
7.5
7.6
7.8
7.3
7.9
7.8
7.9
0
1
2
3
4
5
6
7
8
9
MIRPUR TAP WATER
DO(in mg/L)

40. 40
vi. Parameter 6: Turbidity
7.7
7.8
9.2
7.6
7.4
7.4
7.1
7.6
7.7
7.5
7.8
7.5
7.4
7.6
10.8
7.8
7.9
8.1
7.7
7.8
7.9
8
0
2
4
6
8
10
12
MIRPUR FILTER WATER
DO(in mg/L)
0.1
3.7
0.43
25
0.11
1.46
0.37
0.2
0.05
3.3
5.6
0.2
16
0.3
1.46
0.1
3.73
4.7
0.08
0
0.1
0
0.06
0.12
0
5
10
15
20
25
30
MIRPUR TAP WATER
Turbidity(in NTU)

41. 41
When we tested the water samples of Mirpur area we observed that, the EC and TDS level in the
different samples were all within the normal range, and the tap waters had higher levels of EC and
TDS than filter waters. The % of NaCl in all the samples was also in normal range except for the
above normal level of % of NaCl in the water samples from Mirpur-1 and some parts of Mirpur-
2. We found that the water across Mirpur area is neutral as all the samples had pH almost or very
close to pH 7. The DO of all the samples were well within the normal range and a little low in
parts of Mirpur- 1 and 10. The turbidity in the filter water are in acceptable normal range in all the
samples; the turbidity of the tap waters are also in normal range, only exceptions are the waters
fromMirpur-2 60 feet Road and Mirpur-12 Pallabi with 25 NTU and 16 NTU of turbidity
respectively. Based on our analysis and measurements it is highly suggested that, people of Mirpur
area must use filter water for drinking and cooking in order to keep themselves safe from getting
ill. Moreover, as most of the tap water are also good enough under most of the parameters so these
can be used for everyday and household purposes without much worries.
0.2
0
0.4
0.2
0.14
0.19
0
0.04
0.08
0.2
0.13
5.2
0
0.38
0.3
0.2
0
0
0.02
0
0.08
0.05
0
1
2
3
4
5
6
MIRPUR FILTER WATER
Turbidity(in NTU)

42. 42
Lakes of Dhaka City water quality measurements
i. Parameter 1: Electrical conductivity (EC)
Lakes of DhakaCity Water
Sample ID (Location) EC(in μS/cm) TDS(in ppm) % of NaCl pH DO(in mg/L) Turbidity(in NTU)
Dhanmondi Lake near Rd-15 334 168 0.7 6.9 5.1 10
Dhanmondi Lake near Rd-32 331 166 0.6 6.7 5 18
Dhanmondi Lake near Rd-8 330 165 0.6 6.6 4.6 6.5
Dhanmondi Lake Rabindro Sarabor332 166 0.7 6.6 3.1 8.3
Gulshan Lake North 540 270 1.1 6.7 3.4 40
Gulshan Lake South 585 293 1.1 7 1.2 48
Gulshan Lake East 582 291 1.1 6.6 4.3 41
Gulshan Lake West 526 263 1 6.9 3.7 41
Hatirjheel North 697 349 1.7 6.6 5.2 30
Hatirjheel South 587 294 1.2 6.8 5.9 21
Hatirjheel East 658 328 1.3 6.7 4.8 40
Hatirjheel West 708 353 1.4 6.7 4.7 35
Uttara Lake 546 272 1.1 7.4 7.6 79
Mirpur DOHS Lake 435 218 0.9 7.5 7.8 47
Parameters
334
331
330
332
540
585
582
526
697
587
658
708
546
435
0 100 200 300 400 500 600 700 800
Dhanmondi Lake near Rd-15
Dhanmondi Lake near Rd-32
Dhanmondi Lake near Rd-8
Dhanmondi Lake Rabindro Sarabor
Gulshan Lake North
Gulshan Lake South
Gulshan Lake East
Gulshan Lake West
Hatirjheel North
Hatirjheel South
Hatirjheel East
Hatirjheel West
Uttara Lake
Mirpur DOHS Lake
LAKESOFDHAKACITYWATER
EC(in μS/cm)

43. 43
ii. Parameter 2: Total Dissolved Solid (TDS)
iii. Parameter 3: % of Sodium Chloride (NaCl)
iv. Parameter 4: pH Level
168
166
165
166
270
293
291
263
349
294
328
353
272
218
0 50 100 150 200 250 300 350 400
Dhanmondi Lake near Rd-15
Dhanmondi Lake near Rd-32
Dhanmondi Lake near Rd-8
Dhanmondi Lake Rabindro Sarabor
Gulshan Lake North
Gulshan Lake South
Gulshan Lake East
Gulshan Lake West
Hatirjheel North
Hatirjheel South
Hatirjheel East
Hatirjheel West
Uttara Lake
Mirpur DOHS Lake
LAKESOFDHAKACITYWATER
TDS(in ppm)
0.7
0.6
0.6
0.7
1.1
1.1
1.1
1
1.7
1.2
1.3
1.4
1.1
0.9
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8
Dhanmondi Lake near Rd-15
Dhanmondi Lake near Rd-32
Dhanmondi Lake near Rd-8
Dhanmondi Lake Rabindro Sarabor
Gulshan Lake North
Gulshan Lake South
Gulshan Lake East
Gulshan Lake West
Hatirjheel North
Hatirjheel South
Hatirjheel East
Hatirjheel West
Uttara Lake
Mirpur DOHS Lake
LAKESOFDHAKACITYWATER
% of NaCl

44. 44
v. Parameter 5: Dissolved Oxygen (DO)
vi. Parameter 6: Turbidity
6.9
6.7
6.6
6.6
6.7
7
6.6
6.9
6.6
6.8
6.7
6.7
7.4
7.5
6 6.2 6.4 6.6 6.8 7 7.2 7.4 7.6
DHANMONDILAKE NEAR RD-15
DHANMONDILAKE NEAR RD-32
DHANMONDILAKE NEAR RD-8
DHANMONDILAKE RABINDROSARABOR
GULSHAN LAKE NORTH
GULSHAN LAKE SOUTH
GULSHAN LAKE EAST
GULSHAN LAKE WEST
HATIRJHEELNORTH
HATIRJHEELSOUTH
HATIRJHEELEAST
HATIRJHEELWEST
UTTARA LAKE
MIRPUR DOHS LAKE
LAKESOFDHAKACITYWATER pH
5.1
5
4.6
3.1
3.4
1.2
4.3
3.7
5.2
5.9
4.8
4.7
7.6
7.8
0 1 2 3 4 5 6 7 8 9
Dhanmondi Lake near Rd-15
Dhanmondi Lake near Rd-32
Dhanmondi Lake near Rd-8
Dhanmondi Lake Rabindro Sarabor
Gulshan Lake North
Gulshan Lake South
Gulshan Lake East
Gulshan Lake West
Hatirjheel North
Hatirjheel South
Hatirjheel East
Hatirjheel West
Uttara Lake
Mirpur DOHS Lake
LAKESOFDHAKACITYWATER
DO(in mg/L)

45. 45
We collected water from the different lakes of Dhaka city to test their quality. The EC of waters
from the Dhanmondi Lake was below 350 mm/cm on average and from the Mirpur DOHS Lake it
was 435 mm/cm, this level are within the normal EC range of 50-500 mm/cm. However, all the
other Uttara, Hatirjheel and Gulshan lakes higher than normal levels of EC. The TDS of all the
lakes’ water was also within the normal range and Dhanmondi Lake’s water had lower level of
TDs compared to the rest. Moreover, except for Dhanmondi Lake all the other lakes have much
higher % of NaCl present in their water than the normal % of NaCl of 0.7. The pH of all the lakes
are around pH so we can say that, all these lake waters are almost in the neutral level. The most
alarming factor is the DO in the water, which is very low compared to normal standard level of 7-
11 mg/L, but Mirpur DOHS and Uttara are the only exceptions with good level of DO in them 7.8
mg/L and 7.6 mg/L. We also tested the water of these lakes for turbidity, and found out that only
some parts of Dhanmondi Lake have turbidity within the normal range and all the other lakes have
much higher levels of turbidity than that is normal. We can conclude that, comparatively
Dhanmondi Lake’s water quality is much better, Mirpur DOHS Lake’s water is also not that much
bad, however Gulshan, Uttara and Hatirjheel lakes water quality is very poor. We think that, it is
very challenging for the aquatic creatures and plants to survive in the poor waters of the lakes of
Dhaka; even though Dhanmondi Lake water quality is better but the DO is its water is much lower
than normal. Besides the government, as citizens of Dhaka city it is our duty and responsibility to
keep our lakes clean and well-maintained. Moreover, actions must be taken to clean the water and
preserve the areas of the lakes of Dhaka city.
10
18
6.5
8.3
40
48
41
41
30
21
40
35
79
47
0 10 20 30 40 50 60 70 80 90
Dhanmondi Lake near Rd-15
Dhanmondi Lake near Rd-32
Dhanmondi Lake near Rd-8
Dhanmondi Lake Rabindro Sarabor
Gulshan Lake North
Gulshan Lake South
Gulshan Lake East
Gulshan Lake West
Hatirjheel North
Hatirjheel South
Hatirjheel East
Hatirjheel West
Uttara Lake
Mirpur DOHS Lake
LAKESOFDHAKACITYWATER Turbidity(in NTU)

46. 46
NSU and mineral water quality measurements
i. Parameter 1: Electrical conductivity (EC)
Mineral &NSUWater
Sample ID (Location) EC(in μS/cm) TDS(in ppm) % of NaCl pH DO(in mg/L) Turbidity(in NTU)
Fresh 24 12 0 6.8 8.4 0
Mum 234 118 0.5 6.4 8.3 0.1
Pran 187 94 0.4 6.5 9 0.03
Jibon 162 81 0.3 6.3 8.6 0.02
AquaFina 26 13 0.1 6.7 8.8 0
ACME 25 12 0 6.7 8.8 0
Kinley 33 17 0.1 4 6.4 0.02
Shaymoli 104 51 0.2 6.7 8.3 0.3
Rangdhonu 101 50 0.2 6.4 8.2 0.1
Rangdhonu small 68 34 0.1 6.5 8.7 0.03
Evian 496 248 1 5.6 8.3 0
NSU Tap 262 131 0.5 6 7.5 5
NSU Filter 75 38 0.1 6.5 8.4 0.09
Parameters
24
234
187
162
26
25
33
104
101
68
496
262
75
0 100 200 300 400 500 600
Fresh
Mum
Pran
Jibon
AquaFina
ACME
Kinley
Shaymoli
Rangdhonu
Rangdhonu small
Evian
NSU Tap
NSU Filter
NSU&MINERALWATER
EC(in μS/cm)

47. 47
ii. Parameter 2: Total Dissolved Solid (TDS)
iii. Parameter 3: % of Sodium Chloride (NaCl)
12
118
94
81
13
12
17
51
50
34
248
131
38
0 50 100 150 200 250 300
Fresh
Mum
Pran
Jibon
AquaFina
ACME
Kinley
Shaymoli
Rangdhonu
Rangdhonu small
Evian
NSU Tap
NSU Filter
NSU&MINERALWATER
TDS(in ppm)
0
0.5
0.4
0.3
0.1
0
0.1
0.2
0.2
0.1
1
0.5
0.1
0 0.2 0.4 0.6 0.8 1 1.2
Fresh
Mum
Pran
Jibon
AquaFina
ACME
Kinley
Shaymoli
Rangdhonu
Rangdhonu small
Evian
NSU Tap
NSU Filter
NSU&MINERALWATER
% of NaCl

48. 48
iv. Parameter 4: pH Level
v. Parameter 5: Dissolved Oxygen (DO)
vi. Parameter 6: Turbidity
6.8
6.4
6.5
6.3
6.7
6.7
4
6.7
6.4
6.5
5.6
6
6.5
0 1 2 3 4 5 6 7 8
FRESH
MUM
PRAN
JIBON
AQUAFINA
ACME
KINLEY
SHAYMOLI
RANGDHONU
RANGDHONUSMALL
EVIAN
NSU TAP
NSU FILTER
NSU&MINERALWATER
pH
8.4
8.3
9
8.6
8.8
8.8
6.4
8.3
8.2
8.7
8.3
7.5
8.4
0 1 2 3 4 5 6 7 8 9 10
Fresh
Mum
Pran
Jibon
AquaFina
ACME
Kinley
Shaymoli
Rangdhonu
Rangdhonu small
Evian
NSU Tap
NSU Filter
NSU&MINERALWATER
DO(in mg/L)

49. 49
We collected eleven samples of mineral water and also took water from NSU tap and filter, and
tested them to find out about their quality. All the water samples had EC within the normal range
except for Evian Mineral Water which had an EC of 498 mm/cm which very high for drinking
water. The TDS abd 5 of Nacl of these waters was also within normal range, but comparatively
Evian had higher TDS than the others and its % of NaCl was 1 that is much higher than normal
range. Kinley and Evian water samples also showed acidic properties as they had pH of 4 and 5.6
respectively, all the other samples were close to neutral pH 7, and NSU tap had pH 6. Kinley also
did not have enough DO as we fund its DO to be 6.4 mg/L, but all the other samples of mineral
water and NSU tap water had DO within the normal range of 7-11 mg/L. All the water samples
had turbidity within the standard limit, mineral waters from Fresh, Aquafina, ACME, and Evian
had 0 NTU of turbidity. To conclude, we can say that NSU filter water has a decent and good water
quality and most of the mineral waters in our country also maintains the good level of standard in
their quality. Moreover, Fresh, ACME and Aquafina are the best mineral water brands available
in market. People and travelers shall try to drink mineral waters from these brands when they are
outside or travelling, though all the other brands are also good. However, it is to the best interest
to our health that we shall try to avoid drinking Evian mineral water.
0
0.1
0.03
0.02
0
0
0.02
0.3
0.1
0.03
0
5
0.09
0 1 2 3 4 5 6
Fresh
Mum
Pran
Jibon
AquaFina
ACME
Kinley
Shaymoli
Rangdhonu
Rangdhonu small
Evian
NSU Tap
NSU Filter
NSU&MINERALWATER Turbidity(in NTU)

50. 50
Soft drinks quality measurements
i. Parameter 1: Electrical conductivity (EC)
Soft Drinks
Sample ID (Location) EC(in μS/cm) TDS(in ppm) % of NaCl pH DO(in mg/L) Turbidity(in NTU)
CocaCola 784 393 1.5 2.5 2.6 0
Sprite 409 200 0.8 2.9 1.7 0
7UP 656 328 1.3 3.2 2.2 0
Marinda 656 329 1.3 2.5 2.1 189
Drinko Lichee 558 278 1.1 3.2 6.4 206
RC Lemon 589 296 1.2 2.8 1.8 448
Clemon 615 308 1.2 3 1.4 0
Pran Apple FIZZ 909 456 1.8 3 0.9 0
Mojo 1187 600 2.4 2.4 1.6 0
Frutika Grape 1371 686 2.7 3.2 4.5 0
Frooto 1174 588 2.3 3.1 2.1 1218
Mountain DEW 592 292 1.1 2.7 1.8 30
Fanta 419 212 0.8 2.6 2.6 100
Parameters
784
409
656
656
558
589
615
909
1187
1371
1174
592
419
0 200 400 600 800 1000 1200 1400 1600
CocaCola
Sprite
7UP
Marinda
Drinko Lichee
RC Lemon
Clemon
Pran Apple FIZZ
Mojo
Frutika Grape
Frooto
Mountain DEW
Fanta
SOFTDRINKS
EC(in μS/cm)

51. 51
ii. Parameter 2: Total Dissolved Solid (TDS)
iii. Parameter 3: % of Sodium Chloride (NaCl)
iv. Parameter 4: pH Level
393
200
328
329
278
296
308
456
600
686
588
292
212
0 100 200 300 400 500 600 700 800
CocaCola
Sprite
7UP
Marinda
Drinko Lichee
RC Lemon
Clemon
Pran Apple FIZZ
Mojo
Frutika Grape
Frooto
Mountain DEW
Fanta
SOFTDRINKS
TDS(in ppm)
1.5
0.8
1.3
1.3
1.1
1.2
1.2
1.8
2.4
2.7
2.3
1.1
0.8
0 0.5 1 1.5 2 2.5 3
CocaCola
Sprite
7UP
Marinda
Drinko Lichee
RC Lemon
Clemon
Pran Apple FIZZ
Mojo
Frutika Grape
Frooto
Mountain DEW
Fanta
SOFTDRINKS
% of NaCl

52. 52
v. Parameter 5: Dissolved Oxygen (DO)
vi. Parameter 6: Turbidity
2.5
2.9
3.2
2.5
3.2
2.8
3
3
2.4
3.2
3.1
2.7
2.6
0 0.5 1 1.5 2 2.5 3 3.5
COCACOLA
SPRITE
7UP
MARINDA
DRINKO LICHEE
RC LEMON
CLEMON
PRAN APPLE FIZZ
MOJO
FRUTIKA GRAPE
FROOTO
MOUNTAINDEW
FANTA
SOFTDRINKS pH
2.6
1.7
2.2
2.1
6.4
1.8
1.4
0.9
1.6
4.5
2.1
1.8
2.6
0 1 2 3 4 5 6 7
CocaCola
Sprite
7UP
Marinda
Drinko Lichee
RC Lemon
Clemon
Pran Apple FIZZ
Mojo
Frutika Grape
Frooto
Mountain DEW
Fanta
SOFTDRINKS
DO(in mg/L)

53. 53
Lastly, we tested the soft drinks available in our Bangladeshi market to find out their quality.
Except for Sprite and Fanta all the soft drinks had much higher EC than normal. All the soft drinks
had TDS within the normal range, however TDS of Frooto, Frutika Grape and Mojo was a lot
higher than the normal accepted limit. As expected the soft drinks had high % of NaCl present in
them, all of them had 5 of NaCl above 1.00 and only Fanta and Sprite had it at 0.8 which is close
to the normal limit. All the soft drinks had very low level of pH meaning that they are moderately
strong acidic liquids. The DO was also very much lower than normal accepted minimum level,
and only Drinko Lichee had a DO of 6.4 mg/L that was little close to 7 mg/L. Many of the soft
drinks have a lot higher level of turbidity with Frooto having the highest turbidity of 1218 NTU;
though, Sprite, CocaCola, 7UP, Frutika Grape, Mojo, Pran Apple Fizz and Clemon had turbidity
of 0 NTU which is a good sign of quality. As a result, we can say that Sprite is the best soft drink
in our market and whenever in need of drinking a soft drinks everyone should try to consume
Sprite in order to keep their body well as all the other soft drinks are comparatively poor in quality
than Sprite.
0
0
0
189
206
448
0
0
0
0
1218
30
100
0 200 400 600 800 1000 1200 1400
CocaCola
Sprite
7UP
Marinda
Drinko Lichee
RC Lemon
Clemon
Pran Apple FIZZ
Mojo
Frutika Grape
Frooto
Mountain DEW
Fanta
SOFTDRINKS Turbidity(in NTU)

54. 54
Conclusion and remarks
Water is one of the most important resources that nature offered us. The level of fresh
water in our world is limited and it is slowly decreasing due to its uses and polluting it. It is high
time for us to be conscious about this matter and use the water in a fruitful way as if we can lead
a healthy life as well as we can provide a healthy life for our future generation. Water pollution
has become a growing concern due to the lack of awareness and mismanagement of sewage
system. In the news and reports, the presence of E coli in the jar water sold across the city has also
been revealed. As for the research purpose, we have collected lots of samples from different places
around Dhaka. The purpose has been met too. We have got to know about the quality of water of
Dhaka testing in 6 different levels. As expected, the mineral water which we have bought from the
market, is far better in terms of quality than any other samples. It is a good sign for us. As the other
samples from the different places contains wasters from tap, filtered as well as surface water, it’s
hard to determine the best of them all. We have found that Evian is one of the worst brand of
mineral water and the soft drinks are proven to be bad under the several parameters that we have
used. After analyzing the water samples of Dhaka city, we found out that Uttara and Bashundhara
R/A’s water is better than others, and Puran Dhaka’s water is the worst in comparison to the other
areas of Dhaka city. Among the different lakes of Dhaka city, Gulshan and Hatirjheel Lake’s water
is the worst of all and Dhanmondi Lake is better compared to the other lakes. As water is the most
vital element for living, its pollution should be minimized from all the sectors of society.

55. 55
Appendix:
Figure: Some places that we visited to collect water samples; and the samples of soft drinks.